Files
OpenVPNAdapter/openvpn/buffer/buflineiter.hpp
Sergey Abramchuk 86cc97e55f Squashed 'Sources/OpenVPN3/' content from commit 0a6e0b6e54
git-subtree-dir: Sources/OpenVPN3
git-subtree-split: 0a6e0b6e542c2d19de1f416c4caccd899d72831a
2020-02-24 14:43:11 +03:00

59 lines
1.6 KiB
C++

// OpenVPN -- An application to securely tunnel IP networks
// over a single port, with support for SSL/TLS-based
// session authentication and key exchange,
// packet encryption, packet authentication, and
// packet compression.
//
// Copyright (C) 2012-2019 OpenVPN Inc.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License Version 3
// as published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program in the COPYING file.
// If not, see <http://www.gnu.org/licenses/>.
#pragma once
#include <openvpn/buffer/buffer.hpp>
namespace openvpn {
// Iterate over the lines in a buffer by returning
// a sub-buffer for each line. Zero-copy.
class BufferLineIterator
{
public:
BufferLineIterator(const ConstBuffer& buf)
: src(buf)
{
}
// Returns a zero-length buffer at end of iteration
ConstBuffer next()
{
return src.read_alloc_buf(line_len());
}
private:
size_t line_len() const
{
const unsigned char *const data = src.c_data();
size_t i = 0;
while (i < src.size())
if (data[i++] == '\n')
break;
return i;
}
ConstBuffer src;
};
}